问题描述:
英语翻译
Scientists have observed large concentrations of heavy-metal doposits in the upper twenty centimeters of sediments from the Batic Sea,findings consistent with the growth of industrial activity in the area.
Scientists have observed large concentrations of heavy-metal doposits in the upper twenty centimeters of sediments from the Batic Sea,findings consistent with the growth of industrial activity in the area.
问题解答:
我来补答展开全文阅读